Hi there
My garage is currently supplied by a 15m 3 core 6mm SWA cable running from an RCD protected CU in the house on a 32A MCB. The garage has an RCD CU with a 16A and a 6A MCB for ring main and light circuit.
Am making some changes to my garage:
- installing underfloor heating (max 2000W)
- might install an air con unit (install manual says it needs a 16A circuit)
- if aircon installed, it will not be used at same time as underfloor heating
Couple of questions:
- given the above additions, and retaining the ring and light circuit, is the existing SWA sufficient?
- if the garage CU is upgraded, would it be sensible to put the underfloor and Aircon each on separate radial circuits, and if so, what size MCB?? 16A for each?
- does the MCB at the house CU need to be bigger?
Many thanks
Flash
My garage is currently supplied by a 15m 3 core 6mm SWA cable running from an RCD protected CU in the house on a 32A MCB. The garage has an RCD CU with a 16A and a 6A MCB for ring main and light circuit.
Am making some changes to my garage:
- installing underfloor heating (max 2000W)
- might install an air con unit (install manual says it needs a 16A circuit)
- if aircon installed, it will not be used at same time as underfloor heating
Couple of questions:
- given the above additions, and retaining the ring and light circuit, is the existing SWA sufficient?
- if the garage CU is upgraded, would it be sensible to put the underfloor and Aircon each on separate radial circuits, and if so, what size MCB?? 16A for each?
- does the MCB at the house CU need to be bigger?
Many thanks
Flash